Once again, it's time for our collaboration with the always amusing What Is It? Blog! Do you know what the object in this picture is?

Place your guess in the comment section below. One guess per comment, please, though you can enter as many as you'd like. Post no URLs or weblinks, as doing so will forfeit your entry. Two winners: the first correct guess and the funniest (albeit ultimately wrong) guess will each win a T-shirt from the NeatoShop.

Update: the pictured item is a Civil War Tourniquet. The first correct answer came from Anker, who wins a t-shirt! The funniest answer came from amanderpanderer, who explained that this is, "A epithelial and parietal flange ratchet for a ophthalmic socket tightener necessitated by autonomous sternutation (It goes on your head and holds yer eyeballs in when you sneeze.)" So she wins a t-shirt, too! Find out what all the other mystery items are at the What Is It? blog.

I believe it is a gas cylinder bottle restraining strap to secure an upright bottle to a wall. Welding bottles are secured to a roll around cart. The bottle could also be used in a lab to secure to supply exotic gases.